import { useCallback, useEffect, useRef, useState } from 'react';
import { useManageTransferFeeContext } from '../hooks/useManageTransferFeeContext';
import { NumericFormat } from 'react-number-format';
import {
  Alert,
  Container,
  DataGridColumnHeader,
  DataGridInner,
  KeenIcon,
  useDataGrid
} from '@/components';
import { useCallApi } from '@/hooks';
import {
  Dialog,
  DialogBody,
  DialogContent,
  DialogDescription,
  DialogHeader,
  DialogTitle
} from '@/components/ui/dialog';
import { Input } from '@/components/ui/input';
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue
} from '@/components/ui/select';
import { Button } from '@/components/ui/button';
import { toast } from 'sonner';
import { doSaveLogActivity } from '@/actions/GlobalActions';
import { getAuth } from '@/auth';
import {
  Table,
  TableBody,
  TableCaption,
  TableCell,
  TableFooter,
  TableHead,
  TableHeader,
  TableRow
} from '@/components/ui/table';
import { apiConfig } from '@/config/api.config';

interface TransactionTypeProps {
  id: string;
  name: string;
}
interface WalletProps {
  id: string;
  name: string;
}
interface CustomerProps {
  id: string;
  username: string;
  msisdn: string;
}
const API_URL = apiConfig.service_transaction;
const API_URL_MASTER_DATA = apiConfig.service_master_data;
const API_URL_CUSTOMER = apiConfig.service_customer;

const AddFeeDialog = () => {
  const parentRef = useRef<any | null>(null);
  const { reload } = useDataGrid();
  const { PostData, PutData, GetData } = useCallApi();
  const {
    showAddFeeDialog,
    handleAddFeeDialog,
    handleEditFeeDialog,
    selectedTransferFee,
    transactionTypeId
  } = useManageTransferFeeContext();
  const [customerSearchTerm, setCustomerSearchTerm] = useState('');
  const [open, setOpen] = useState(false);

  const [alert, setAlert] = useState({
    show: false,
    message: ''
  });
  const [transactionTypes, setTransactionTypes] = useState<TransactionTypeProps[]>([]);
  const [wallets, setWallets] = useState<WalletProps[]>([]);
  const [customers, setCustomers] = useState<CustomerProps[]>([]);
  const [defaultCustomer, setDefaultCustomer] = useState('');
  const [transactionTypeName, setTransactionTypeName] = useState('');

  const [isLoadingTransactionType, setIsLoadingTransactionType] = useState(false);
  const [isLoadingWallets, setIsLoadingWallets] = useState(false);
  const [isLoadingCustomers, setIsLoadingCustomers] = useState(false);
  const customersWithNames = customers.map((customer) => ({
    id: customer.id,
    name: customer.username
  }));
  const initialState = {
    name: '',
    description: '',
    transaction_type: '',
    minimum_amount: 0,
    maximum_amount: 0,
    period_start: '',
    period_end: '',
    deduct_amount: 0,
    deduct_percentage: 0,
    fee_amount: 0,
    priority: '',
    status: '',
    status_include: '',
    created_by: '',
    created_at: '',
    deduct_from: '',
    deduct_from_account: '',
    credit_to: '',
    credit_destination: '00000000-0000-0000-0000-000000000000',
    credit_destination_account: ''
  };


  const [formField, setFormField] = useState(initialState);

  const resetForm = () => {
    setFormField(initialState);
    setTransactionTypeName('');
  };

  const [isSubmitting, setIsSubmitting] = useState(false);
  const [showTransactionFeeDialog, setShowTransactionFeeDialog] = useState(false);
  const parsedUser = getAuth()?.user;

  useEffect(() => {
    if (showAddFeeDialog && transactionTypeId) {
      setIsLoadingTransactionType(true);

      setFormField((prev) => ({
        ...prev,
        transaction_type: transactionTypeId
      }));

      const getTransactionTypeDetails = async () => {
        try {
          const response = await GetData(
            `${API_URL}/transactiontype/getdata/${transactionTypeId}`,
            {}
          );
          if (response?.status && response?.data) {
            setTransactionTypeName(response.data.name);
          }
        } catch (error) {
          console.error('Error fetching transaction type details', error);
        } finally {
          setIsLoadingTransactionType(false);
        }
      };

      getTransactionTypeDetails();
    }
  }, [showAddFeeDialog, transactionTypeId, GetData]);

  useEffect(() => {
    if (!showAddFeeDialog) {
      setCustomerSearchTerm('');
      setOpen(false);
    }
  }, [showAddFeeDialog]);

  useEffect(() => {
    const created_time = new Date();
    const formattedTime = created_time.toISOString().slice(0, 19).replace('T', ' ');

    if (showAddFeeDialog) {
      setFormField((prev) => ({
        ...prev,
        created_by: parsedUser?.username,
        created_at: formattedTime
      }));
    }
  }, [showAddFeeDialog, parsedUser?.username]);

  useEffect(() => {
    if (!showAddFeeDialog) return;

    const getTransactionTypeList = async (sorting: any) => {
      setIsLoadingTransactionType(true);
      try {
        sorting = sorting.length === 0 ? [{ id: 'name', desc: false }] : sorting;
        const response = await GetData(`${API_URL}/transactiontype/list`, {
          limit: 100,
          page: 1,
          with_deleted: false,
          order_field: sorting[0].id,
          order_direction: sorting[0].desc ? 'DESC' : 'ASC'
        });
        setTransactionTypes(response?.data.list || []);
      } catch (error) {
        console.error('Error fetching transaction types', error);
      } finally {
        setIsLoadingTransactionType(false);
      }
    };

    getTransactionTypeList([{ id: 'id', desc: false }]);
  }, [showAddFeeDialog, GetData]);

  const fetchWallets = useCallback(async () => {
    setIsLoadingWallets(true);
    const params = {
      limit: 100,
      page: 1,
      with_deleted: false,
      order_field: 'Wallets.name',
      order_direction: 'ASC'
    };
    try {
      const response = await GetData(`${API_URL_MASTER_DATA}/wallet/list`, params);
      if (response?.status && response?.data) {
        setWallets(response.data.list);
      } else {
        setWallets([]);
      }
    } catch (error) {
      console.error('Error fetching wallets', error);
      setWallets([]);
    } finally {
      setIsLoadingWallets(false);
    }
  }, [GetData]);

  useEffect(() => {
    if (!showAddFeeDialog) return;
    fetchWallets();
  }, [showAddFeeDialog, fetchWallets]);

  useEffect(() => {
    if (!showAddFeeDialog) return;
    const getCustomerList = async (sorting: any) => {
      setIsLoadingCustomers(true);
      try {
        sorting = sorting.length === 0 ? [{ id: 'name', desc: false }] : sorting;

        const response = await GetData(`${API_URL_CUSTOMER}/customer/list`, {
          limit: 100,
          page: 1,
          with_deleted: false,
          order_field: sorting[0].id,
          order_direction: sorting[0].desc ? 'DESC' : 'ASC'
        });
        const customerList = response?.data.list || [];
        setCustomers(customerList);

        if (customerList.length > 0) {
          setDefaultCustomer(customerList[0].id);
        }
      } catch (error) {
        console.error('Error fetching customers', error);
        setCustomers([]);
      } finally {
        setIsLoadingCustomers(false);
      }
    };

    getCustomerList([{ id: 'id', desc: false }]);
  }, [showAddFeeDialog, GetData]);

  const doCreateTransferType = useCallback(
    async (e: React.FormEvent<HTMLFormElement>) => {
      e.preventDefault();
      setIsSubmitting(true);

      const requiredFields = [
        'name',
        'description',
        'period_start',
        'period_end',
        'transaction_type',
        'status',
        'status_include',
        'priority',
        'deduct_from',
        'deduct_from_account',
        'credit_to',
        'credit_destination_account'
      ];

      for (const field of requiredFields) {
        if (formField[field as keyof typeof formField] === '') {
          setAlert({
            show: true,
            message: `All required fields must be filled out. Missing: ${field.replace(/_/g, ' ')}`
          });
          setIsSubmitting(false);
          return;
        }
      }

      if (formField.credit_to === 'I' && !formField.credit_destination) {
        setAlert({
          show: true,
          message: 'Credit destination is required when Input Customer is selected'
        });
        setIsSubmitting(false);
        return;
      }

      setAlert({ show: false, message: '' });

      const payload = { ...formField };

      if (formField.credit_to !== 'I') {
        payload.credit_destination = '00000000-0000-0000-0000-000000000000';
      }

      try {
        const response = await PostData(`${API_URL}/transactionfees/create`, payload);

        if (response?.status) {
          toast.success('Successfully created transfer fee');
          reload();
          resetForm();
          handleAddFeeDialog(false);

          const createActivity = {
            module: 'Manage Transfer Fee',
            description: `Create Transfer Fee => ${formField.name}`,
            action: 'C'
          };
          doSaveLogActivity(createActivity);
        } else {
          setAlert({ show: true, message: response?.message || 'Failed to create transfer fee' });
        }
      } catch (error) {
        console.error('Error creating transfer fee', error);
        setAlert({ show: true, message: 'An error occurred while creating the transfer fee' });
      } finally {
        setIsSubmitting(false);
      }
    },
    [formField, PostData, reload, handleAddFeeDialog]
  );

  const renderSelectWithLoading = (
    value: string,
    onChangeHandler: (value: string) => void,
    options: { id: string; name: string }[] | null,
    placeholder: string,
    isLoading: boolean
  ) => {
    return (
      <Select value={value} onValueChange={onChangeHandler} disabled={isLoading}>
        <SelectTrigger>
          {isLoading ? (
            <div className="flex items-center">
              <div className="animate-pulse bg-gray-200 h-4 w-24 rounded"></div>
              <span className="ml-2">Loading...</span>
            </div>
          ) : (
            <SelectValue placeholder={placeholder} />
          )}
        </SelectTrigger>
        <SelectContent>
          {options &&
            options.map((option) => (
              <SelectItem value={option.id} key={option.id}>
                {option.name}
              </SelectItem>
            ))}
        </SelectContent>
      </Select>
    );
  };

  return (
    <Dialog open={showAddFeeDialog} onOpenChange={(open) => handleAddFeeDialog(open)}>
      <DialogContent className="container-fixed max-w-[1080px] flex flex-col p-5 overflow-hidden [&>button]:hidden">
        <DialogTitle></DialogTitle>
        <DialogDescription></DialogDescription>
        <DialogHeader className="p-5 border-0">
          <div className="flex items-center justify-between flex-wrap grow">
            <div className="flex flex-col justify-center">
              <h1 className="text-xl font-semibold leading-none text-gray-900">Add Transfer Fee</h1>
            </div>
            <div
              className="cursor-pointer hover:opacity-100 opacity-50"
              onClick={() => {
                handleAddFeeDialog(false);
                resetForm();
              }}
            >
              <KeenIcon icon="cross" className="text-1.5xl" />
            </div>
          </div>
        </DialogHeader>
        <DialogBody className="max-h-[1080px] overflow-y-auto">
          {alert.show && (
            <div className="sticky top-0 z-10 bg-white p-3">
              <Alert variant="danger" className="mb-3">
                <h3>{alert.message}</h3>
              </Alert>
            </div>
          )}
          <form action="" onSubmit={doCreateTransferType}>
            <div className="card flex flex-col gap-5">
              <div className="card-body grid gap-5 p-0">
                <div className="w-full">
                  <label className="form-label">
                    Transaction Type ID <span className="text-red-500">*</span>
                  </label>
                  {transactionTypeId ? (
                    <div className="relative">
                      <Input
                        className="input bg-gray-100"
                        type="text"
                        value={isLoadingTransactionType ? '' : transactionTypeName}
                        readOnly
                      />
                      {isLoadingTransactionType && (
                        <div className="absolute inset-0 flex items-center justify-start bg-gray-100 px-3">
                          <div className="flex items-center">
                            <div className="animate-pulse bg-gray-200 h-4 w-24 rounded"></div>
                            <span className="ml-2 text-gray-500">Loading transaction type...</span>
                          </div>
                        </div>
                      )}
                    </div>
                  ) : (
                    renderSelectWithLoading(
                      formField.transaction_type,
                      (transaction_type) => setFormField((prev) => ({ ...prev, transaction_type })),
                      transactionTypes,
                      'Select Transaction Type',
                      isLoadingTransactionType
                    )
                  )}
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Transfer Free Name <span className="text-red-500">*</span>
                  </label>
                  <Input
                    className="input"
                    type="text"
                    autoComplete="off"
                    value={formField.name}
                    onChange={({ target }) =>
                      setFormField((prev) => ({ ...prev, name: target.value }))
                    }
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Description <span className="text-red-500">*</span>
                  </label>
                  <Input
                    className="input"
                    type="text"
                    autoComplete="off"
                    value={formField.description}
                    onChange={({ target }) =>
                      setFormField((prev) => ({ ...prev, description: target.value }))
                    }
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">Minimum Amount</label>
                  <NumericFormat
                    className="input"
                    value={formField.minimum_amount}
                    thousandSeparator="."
                    decimalSeparator=","
                    allowNegative={false}
                    onValueChange={(values) => {
                      setFormField((prev) => ({
                        ...prev,
                        minimum_amount: values.floatValue || 0
                      }));
                    }}
                    placeholder="Enter Minimum Amount"
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">Maximum Amount</label>
                  <NumericFormat
                    className="input"
                    value={formField.maximum_amount}
                    thousandSeparator="."
                    decimalSeparator=","
                    allowNegative={false}
                    onValueChange={(values) => {
                      setFormField((prev) => ({
                        ...prev,
                        maximum_amount: values.floatValue || 0
                      }));
                    }}
                    placeholder="Enter Maximum Amount"
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Period Start <span className="text-red-500">*</span>
                  </label>
                  <Input
                    className="input"
                    type="date"
                    autoComplete="off"
                    value={formField.period_start ? formField.period_start.split('T')[0] : ''}
                    onChange={({ target }) =>
                      setFormField((prev) => ({ ...prev, period_start: target.value }))
                    }
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Period End <span className="text-red-500">*</span>
                  </label>
                  <Input
                    className="input"
                    type="date"
                    autoComplete="off"
                    value={formField.period_end ? formField.period_end.split('T')[0] : ''}
                    onChange={({ target }) =>
                      setFormField((prev) => ({ ...prev, period_end: target.value }))
                    }
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">Deduct Amount</label>
                  <NumericFormat
                    className="input"
                    value={formField.deduct_amount}
                    thousandSeparator="."
                    decimalSeparator=","
                    allowNegative={false}
                    onValueChange={(values) => {
                      setFormField((prev) => ({
                        ...prev,
                        deduct_amount: values.floatValue || 0
                      }));
                    }}
                    placeholder="Enter Deduct Amount"
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">Deduct Percentage</label>
                  <NumericFormat
                    className="input"
                    value={formField.deduct_percentage}
                    thousandSeparator="."
                    decimalSeparator=","
                    allowNegative={false}
                    onValueChange={(values) => {
                      setFormField((prev) => ({
                        ...prev,
                        deduct_percentage: values.floatValue || 0
                      }));
                    }}
                    placeholder="Enter Deduct Percentage"
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">Fee Amount</label>
                  <NumericFormat
                    className="input"
                    value={formField.fee_amount}
                    thousandSeparator="."
                    decimalSeparator=","
                    allowNegative={false}
                    onValueChange={(values) => {
                      setFormField((prev) => ({
                        ...prev,
                        fee_amount: values.floatValue || 0
                      }));
                    }}
                    placeholder="Enter Fee Amount"
                  />
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Deduct From <span className="text-red-500">*</span>
                  </label>
                  <Select
                    value={formField.deduct_from}
                    onValueChange={(value) => setFormField({ ...formField, deduct_from: value })}
                  >
                    <SelectTrigger>
                      <SelectValue placeholder="Select Deduct From" />
                    </SelectTrigger>
                    <SelectContent>
                      <SelectItem value="D">Destination Member</SelectItem>
                      <SelectItem value="S">Source Member</SelectItem>
                    </SelectContent>
                  </Select>
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Deduct From Destination <span className="text-red-500">*</span>
                  </label>
                  {renderSelectWithLoading(
                    formField.deduct_from_account,
                    (value) => setFormField({ ...formField, deduct_from_account: value }),
                    wallets,
                    'Select Wallet',
                    isLoadingWallets
                  )}
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Credit To <span className="text-red-500">*</span>
                  </label>
                  <Select
                    value={formField.credit_to}
                    onValueChange={(value) =>
                      setFormField({
                        ...formField,
                        credit_to: value,
                        credit_destination:
                          value === 'I' ? '' : '00000000-0000-0000-0000-000000000000'
                      })
                    }
                  >
                    <SelectTrigger>
                      <SelectValue placeholder="Select Credit To" />
                    </SelectTrigger>
                    <SelectContent>
                      <SelectItem value="D">Destination Member</SelectItem>
                      <SelectItem value="S">Source Member</SelectItem>
                      <SelectItem value="I">Input Customer</SelectItem>
                    </SelectContent>
                  </Select>
                </div>
                {formField.credit_to === 'I' && (
                  <div className="w-full">
                    <label className="form-label">
                      Credit Destination <span className="text-red-500">*</span>
                    </label>
                    <div className="relative">
                      <div
                        className="flex w-full items-center justify-between rounded-md border border-input bg-transparent px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 cursor-pointer"
                        onClick={() => setOpen(!open)}
                      >
                        <span className="truncate">
                          {customers.find(
                            (customer) => customer.id === formField.credit_destination
                          )?.username || 'Search customer...'}
                        </span>
                        <path d="m6 9 6 6 6-6"></path>
                      </div>

                      {open && (
                        <div className="absolute left-0 right-0 top-full z-50 mt-1 max-h-52 overflow-auto rounded-md border border-gray-200 bg-white shadow-lg">
                          <div className="sticky top-0 bg-white p-2 border-b">
                            <Input
                              className="h-8 text-sm"
                              type="text"
                              placeholder="Search customer..."
                              value={customerSearchTerm}
                              onChange={(e) => setCustomerSearchTerm(e.target.value)}
                              autoComplete="off"
                              onClick={(e) => e.stopPropagation()}
                              autoFocus
                            />
                          </div>
                          <div>
                            {customers
                              .filter(
                                (customer) =>
                                  customer.username
                                    .toLowerCase()
                                    .includes(customerSearchTerm.toLowerCase()) ||
                                  customer.msisdn.includes(customerSearchTerm)
                              )
                              .map((customer) => (
                                <div
                                  key={customer.id}
                                  className="cursor-pointer px-3 py-1.5 text-sm hover:bg-gray-100"
                                  onClick={() => {
                                    setFormField({
                                      ...formField,
                                      credit_destination: customer.id
                                    });
                                    setOpen(false);
                                  }}
                                >
                                  {customer.username}
                                </div>
                              ))}
                            {customers.filter(
                              (customer) =>
                                customer.username
                                  .toLowerCase()
                                  .includes(customerSearchTerm.toLowerCase()) ||
                                customer.msisdn.includes(customerSearchTerm)
                            ).length === 0 && (
                              <div className="px-3 py-2 text-sm text-gray-500">
                                No customer found
                              </div>
                            )}
                          </div>
                        </div>
                      )}
                    </div>
                  </div>
                )}
                <div className="w-full">
                  <label className="form-label">
                    Credit Destination Account <span className="text-red-500">*</span>
                  </label>
                  {renderSelectWithLoading(
                    formField.credit_destination_account,
                    (value) => setFormField({ ...formField, credit_destination_account: value }),
                    wallets,
                    'Select Wallet',
                    isLoadingWallets
                  )}
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Status <span className="text-red-500">*</span>
                  </label>
                  <Select
                    value={formField.status}
                    onValueChange={(value) => setFormField({ ...formField, status: value })}
                  >
                    <SelectTrigger>
                      <SelectValue placeholder="Select Status" />
                    </SelectTrigger>
                    <SelectContent>
                      <SelectItem value="Y">Active</SelectItem>
                      <SelectItem value="N">Inactive</SelectItem>
                    </SelectContent>
                  </Select>
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Status Include <span className="text-red-500">*</span>
                  </label>
                  <Select
                    value={formField.status_include}
                    onValueChange={(value) => setFormField({ ...formField, status_include: value })}
                  >
                    <SelectTrigger>
                      <SelectValue placeholder="Select Status" />
                    </SelectTrigger>
                    <SelectContent>
                      <SelectItem value="Y">Yes</SelectItem>
                      <SelectItem value="N">No</SelectItem>
                    </SelectContent>
                  </Select>
                </div>
                <div className="w-full">
                  <label className="form-label">
                    Priority <span className="text-red-500">*</span>
                  </label>
                  <Select
                    value={formField.priority}
                    onValueChange={(value) => setFormField({ ...formField, priority: value })}
                  >
                    <SelectTrigger>
                      <SelectValue placeholder="Select Priority" />
                    </SelectTrigger>
                    <SelectContent>
                      <SelectItem value="Y">Yes</SelectItem>
                      <SelectItem value="N">No</SelectItem>
                    </SelectContent>
                  </Select>
                </div>
                <div className="flex justify-end pt-2.5 gap-5">
                  <Button
                    variant={'outline'}
                    type="reset"
                    onClick={() => {
                      resetForm();
                    }}
                  >
                    Reset
                  </Button>
                  <Button
                    variant={'default'}
                    type="submit"
                    disabled={
                      isSubmitting ||
                      isLoadingTransactionType ||
                      isLoadingWallets ||
                      isLoadingCustomers
                    }
                  >
                    {isSubmitting ? 'Saving...' : 'Save Changes'}
                  </Button>
                </div>
              </div>
            </div>
          </form>
        </DialogBody>
      </DialogContent>
    </Dialog>
  );
};

export default AddFeeDialog;
